Life buoy



July 3, 1923.

G. HAACK' LIFE BUOY Filed Jan. 21.

WITNESS:

INVENTOR.

- GUSTHVE. HHHCK.

M4441. MMJMQA.

ATTDRNEY Patented July 3, 1923.

UNTED ST LIFE BUOY.

App1ication filed January 21, 1922. Serial No. 530,953.

T 0 all whom it may concern Be it .known that I, GUsrAvn HAAOK, a citizen of the United States, residin at Madison, in the county of Dane and tate of Wisconsin, have invented certain new and useful Improvements in Life Buoys, of which the following is a specification.

My invention relates to life buoys to be worn on the person; and the objects of my invention are, first, to construct a device of thin metal of tubular or hollow form, adapted to be filled with compressed air; second, to have the device convenient to secure to the person by means of adjustable metal bands and straps.

I attain these objects by the mechanism shown in the accompanying drawing in which Fig. l, is a top view;

Fig. 2, is a front elevation;

Fig. 3, is a side elevation;

Fig. 4:, is a front elevation of another form of buoy;

Fig. 5, is a side elevation of the same.

Similar numerals refer to similar parts throughout the several views.

The buoy is formed, preferably of a thin aluminum tube 1, curved downward and backward from the top, thence downward at both sides, thence downward and forward across the bottom a distance sufiicient to admit of joining the two ends by a sleeve 2, of cast aluminum, upon the sleeve a boss 3, is located and cast integral therewith, said boss is drilled and threaded to receive an air check-valve 4, through which air can be forced to the required pressure to prevent the thin tube being easily dented by contact with obstacles floating in the water. Metal bands 5, are disposed around the tube, two a distance apart on the upper cross portion for attaching a neck band 6, and one each at approximately the bottom of the side portions for attaching a link 7. The said bands are formed from sheet metal, preferably aluminum with one end turned outward and the other turned outward and then inward forming a loop 8, adapted to carry the link aforesaid. Holes are drilledin the projecting ends of the bands for inserting clamping bolts 9, by which the bands can be belt for holding the lower end of the buoy to the wearer. Another form of buoy isshown in Figs. 4 and 5, this form'would 'be more convenient for swimming and is secured to the person by a neck band and belt attached to the bands 11, and is filled with oom-v pressed air through the caps 12, by means of air valves 13. v

Having thus vdescribed my invention, I claim.

In a life buoy, a metal tubular air cham ber of convenient form to be secured to a person across and in front of the body just, below the neck, thence down both sides and across the waist and connected at the lower ends by a tubular coupling, in which is located an air admitting check valve, in combination with adjustablemetal'bands disposed around the outside of the air chamber for attaching neck, and waist straps, for securing the buoy to a person.

In testimony whereof I afiix my signa turein the presence of two subscribing wit- J nesses.

GUSTAVE HAACK. Witnesses: 1

FRANCES FRENCH,

' JOHN L. BOURKE.

Straps 10, are secured to the lower links adapted to be used as a waist 1 tightened and secured in the localities de- I 

